Oil and gas burner



July 27,1926, 1,593,612

' W. E. WIESENTHAL OIL AND GAS BURNER riginal Filed Oct. 4. 1923 2 Sheets-Sheet l 53 y W 5,2 a

mcu:

W. E. WIESENTHAL July 27,1925. 1,593,612

OIL 'AND GAS BURNER original Filed oct. 4. 1925 2 sheets-sheet 2 H l i i l E IH Patented July 27, 1925i..

rle.

WALTER E. VJIESENTHAL, OF WICHITA, KANSAS.

OIL AND GAS BURNER.

Application filed October 4, 1923, Serial No. 668,558. Renewed June 12, 1926.

rlhis invention aims to provide novel cr may be regulated responsive to the lpressure in a boiler which is heated by the burner, novel means being provided for securing a proper mixture of fuel and air.

lt is Within the province of the disclosure to improve generally and to enhance the utility of devices of the type to Which the invention appertains;

l/Vith the above and other objects in view, which will appear as the description' proceeds the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, Within the scope of what is claimed, changes in the precise embodiment of the invention shown, can be made, Without departing 'trom the spirit of the invention.

ln the accompanying drawings Figure 1 shows in side elevation, a device constructed in accordance with the. invention; Figure 2 is a. longitudinal. section wherein parts are shovvn in elevation; Figure 3 is a top plan; Figure 4 is a section on the line 4-4 of Figure 2; and Figure 5 is transverse section.

ln carrying out the invention7 there is provided-a casing 1 having a lateral extension 2. A. mixing chamber 3 is formed in the casing 1 and has a lateral outlet 4 located in the extension 2. A fuel inlet 5 is fashioned in the casing 1 and communicates with the mixing chamber 3,.there being a seat 6 at the point of communication between the fuel inlet 5 and the mixing chamber 3. A fuel pipe 7 discharges into the inlet 5. ln the upper surface of the casing 1 there is an air inlet 8 Which communica-tes With the mix ing chamber 3. Air enters the inlet 8 under the control of a valve 9, which may be a pet cock connected with the casing 1 through the instrumentality ot a thimble 10.

A. main pressure chamber 11 is formed in the casing 1, steam or other lluid under pressure being supplied to the chamber 11 through a pressure pipe 12 mounted in one end ot the casing 1 and communicating with the chamber 11. A pressure discharge nozzle 14 extends through the outlet 4 of the mixing chamber 3 and is mounted at its inner end in the casing 1, the nozzle being in communication with the main pressure chamber 11. In the outer end of the nozzle 14 there is an orifice 15. The pressure discharge nozzle 14 is located in a fuel discharge nozzle 16 connected by a coupling` 17 and a pipe 18 with the outlet 4 of the mixing chamber 8, the pipe 18 being mounted at its inner end in the extension 2 of the casing 1, as clearly shown in Figure 4. ln order that the discharge nozzle 14 may be cleaned out readily, a plug 19 is threaded into the. Casing 1 in alinement With the nozzle 14.

rEhe numeral 2O designates an auxiliary pressure chamber supported on the casing 1 by a bracket 21, a short pipe 22 establishing communication bet-Ween the main pressure chamber 11 and the auxiliary pressure chamber 20. On the auxiliary pressure chamber 20, a yieldable diaphragm 23 is mounted. lEhe diaphragm 28 is held in place by a retainer 24, in the form of a ring, connected to the pressure chamber by securing elements 25, certain of Which engage the upper end of the bracket 21. The retainer 24 has fulcrum ears 26 carrying a pivot mem` ber 2'? Whereon a lever y28 is mounted, intermediate its ends, for limited swinging movement, one end of the lever 28 being received slidably in a guide on the retainer 24. A. toot 30 rests on the yieldable diaphragm 23 and has an upstanding part 31, wher-sunto the lever 28 is pivoted as shown at 32.

A standard 33 is erected on the casing 1, the lever 28 having an opening 84 ot such size that the lever may have the necessar swinging movement, the standard extendin` through the opening. @n the standard 8, a iirst adjusting device 35 and a. second acjusting device 86 are mounted, the adjusting devices preierably being in the form ol: nut-s, the adjusting device 85 hearing upon the intermediate portion of the lever 28. A. Compression spring 37 surrounds the standard 88, one end of the spring bearing on the adjusting device 35, and the other end olf the spring bearing on the lever A valve 38 controls the seat 6 and includes a stem 40 slidable in a gland 3.() carried by the casing 1. A cross pin 41 is mounted in the stem 40.

The upper end of stem 40 is mount-ed in a. biturcated head 42 receiving one end of the lever 28, a bolt 48 or the like being carried by the head 42, and being received in an elongated slot 44 which is formed in the end of the lever 28. rlhe pin 41 is used tor two purposes. First, by Way of the pin 41, the stem 40 may be rotated and adjusted in the head 42, and, second, the nut 75 ot the gland 39 may be moved upvvardly until it engae'es the pin Lll to hold the valve 3S in open po tion, iu ease it is desired to blow out the oil line with steam.

ln practical operation, the fuel is delivered through the mixing` chamber 3 into the outlet l and from theuee into the nozzle 16 bv vvay oi' the pipe 1S and the coupling' 1T. .Steam under pressure is delivered through the pipe 1 2 into the main pressure chamber ll. and moving through the nozzle il, is discharged into the nozzle 1G` a suction being created in the nozzle 16 and in the Chamber 3, air being,n drawn into the chamber 3 through the inlet 8, under the control of the valve 9, the result being; that at the outlet end of the nozzle 1G there is a mixture of aira fuel and steam, the mixture burning at the outlet end of the nozzle 1G.

is the pressure builds up in the main pressure chamber ll, the pressure is communicated to the auxiliary pressure chamber Q0 through the pipe 22. and the diaphragm 23 yields, swinging` movement being` imparted to the lever 2O by the foot 2O which rests upon the diaphragm. rhe left hand end of the lever 28 (Figure 2) swings downwardly, carrying with it the. valve 38, the space between the valve 3S and the seat G being lessened and the amount of fuel discharged into the chamber 8 beingcut dovvn accordingly'. The pressure exerted by the spring 37 on the lever QS may be adjusted through the instrumentality of the lower nut 36, and thusA` the valve 38 may caused to close at anv desired boiler uressure. The

.f l position oi" the lever 2S, and, consequently/f, the aosition of the valve 38 ivith resiect to i i the seat 6, may be regulated by the position of the nut Having thus described the iirventiont what l, claim asrneiv, anddesireto protect by Letters Patent is ln a device of the class described, a casinj l having ainixinn' chamber and a main presure. chamber, an auxiliary pressure chamber supported by the easingand communieating;l with the main pressure chamber` a diaphragm responsive to pressure in the auxiliary chamber anc carried by said chainq ber, a lever, means for ulcruming the leveI intermediate its ends, means carried bv the lever for rendering the saine responsive to the diaphragm, a valve controlling the passage of fuel into the mixing; chamber, means. for connect-ingl the valve. with the lever. the tivo last-speeiied means beine` disposed on opposite sides of the fulcrum oit' the lever, a standard on the easing7 adjusting devices movable on the standard longtudinallj.' thereof, a compression spring on the standard and cooperating with one adjusting device and ivith one side of the lever, the ether adjustingv device eoaeting with the opposite side or the lerer.

ln testimony that l claim the foregoingT s my own, I have hereto aliixed ni y signature.

lVALTER E. WIESE N Til-IAL.

adjusting; -1' 

